Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Ubon Ratchathani, Thailand:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP), Ubon Ratchathani, Thailand would travel a Great Circle distance of 8,593 miles (or 13,829 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between St. Louis Downtown Airport and Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between St. Louis Downtown Airport and Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about St. Louis Downtown Airport (CPS):

• The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
• Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
• Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• St. Louis Downtown Airport (CPS) has 3 runways.
• The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
• The airport opened in 1929 as Curtiss-Steinberg Airport.
• The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.

Facts about Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP):

• Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP) currently has only 1 runway.
• Because of Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี's relatively low elevation of 406 feet, planes can take off or land at Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The furthest airport from Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP) is Maria Reiche Neuman Airport (NZC), which is nearly antipodal to Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (meaning Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี is almost on the exact opposite side of the Earth from Maria Reiche Neuman Airport), and is located 12,407 miles (19,967 kilometers) away in Nazca, Ica Region, Peru.
• The closest airport to Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP) is Savannakhet Airport (ZVK), which is located 90 miles (146 kilometers) N of UBP.